This book is the most comprehensive study available of the theoretical and practical aspects of controlling and measuring Electromagnetic Interference in switching power supplies, including input filter instability considerations.

The new edition is thoroughly revised with six completely new chapters, while the existing EMI chapters are expanded to include many more step-by-step numerical examples and key derivations and EMI mitigation techniques. New topics cover the length and breadth of modern switching power conversion techniques, lucidly explained in simple but thorough terms, now with uniquely detailed "wall-reference charts" providing easy access to even complex topics.

Key Features

  • Step-by-step and iterative approach for calculating high-frequency losses in forward converter transformers, including Proximity losses based on Dowell's equations
  • Thorough, yet uniquely simple design flow-chart for building DC-DC converters and their magnetic components under typical wide-input supply conditions
  • Step-by-step, solved examples for stabilizing control loops of all three major topologies, using either transconductance or conventional operational amplifiers, and either current-mode or voltage-mode control


Power supply design engineers, application engineers, IC systems designers, and students.

Table of Contents

Chapter 1: The Principles of Switching Power Conversion
Chapter 2: DC-DC Converter Design and Magnetics
Chapter 3: Off-line Converter Design and Magnetics
Chapter 4: The Topology FAQ
Chapter 5: Optimal Core Selection
Chapter 6: Component Ratings, Stresses, Reliability and Life
Chapter 7: Optimal Power Components Selection
Chapter 8: Conduction and Switching Losses
Chapter 9: Discovering New Topologies
Chapter 10: Printed Circuit Board Layout
Chapter 11: Thermal Management
Chapter 12: Feedback Loop Analysis and Stability
Chapter 13: Paralleling, Interleaving and Sharing
Chapter 14: The Front-End of AC-DC Power Supplies
Chapter 15: DM and CM Noise in Switching Power Supplies
Chapter 16: Fixing EMI across the Board
Chapter 17: Input Capacitor and Stability
Chapter 18: The Math behind the Electromagnetic Puzzle
Chapter 19: Solved Examples
Appendix A


No. of pages:
© 2012
Print ISBN:
Electronic ISBN:

About the author

Sanjaya Maniktala

Affiliations and Expertise

Principal Engineer, National Semiconductor, Santa Clara, CA, USA